I think there should be an option wether I want to make a third island or not. Because most of my games are made with 2 filled islands and a third 1x1 small empty island or I use the third island to cover a forced misplacement. And the only effect that a forced third island has is an unlikely scenario in which this third island takes away like maximum 2 points of boats. (again, this was my experience)
Other than that I totally like this game! Im playing it daily now haha.. I tried it once and it got me immediatly.